<template>
  <div class="app-container">
    <el-card class="filter-container" shadow="never">
      <div>
        <i class="el-icon-search"></i>
        <span>筛选搜索</span>
        <el-button
          style="float:right"
          type="primary"
          @click="handleSearchList()"
          size="small">
          查询搜索
        </el-button>
        <el-button
          style="float:right;margin-right: 15px"
          @click="handleResetSearch()"
          size="small">
          重置
        </el-button>
      </div>
      <div style="margin-top: 15px">
        <el-form :inline="true" :model="listQuery" size="small" label-width="140px">
          <el-form-item label="活动名称：">
            <el-input v-model="listQuery.keyword" class="input-width" placeholder="活动名称" clearable></el-input>
          </el-form-item>
        </el-form>
      </div>
    </el-card>
    <el-card class="operate-container" shadow="never">
      <i class="el-icon-tickets"></i>
      <span>数据列表</span>
      <el-button size="mini" class="btn-add" @click="handleAdd()" style="margin-left: 20px">添加活动</el-button>
      <el-button size="mini" class="btn-add" @click="handleShowSessionList()">秒杀时间段列表</el-button>
    </el-card>
    <div class="table-container">
      <el-table
        ref="flashTable"
        :data="list"
        style="width: 100%;"
        v-loading="listLoading"
        border>
        <el-table-column type="selection" width="60" align="center"></el-table-column>
        <el-table-column label="编号" width="100" align="center">
          <template slot-scope="scope">{{ scope.row.id }}</template>
        </el-table-column>
        <el-table-column label="活动标题" align="center">
          <template slot-scope="scope">{{ scope.row.title }}</template>
        </el-table-column>
        <el-table-column label="活动状态" width="140" align="center">
          <template slot-scope="scope">{{ scope.row |formatActiveStatus }}</template>
        </el-table-column>
        <el-table-column label="开始时间" width="140" align="center">
          <template slot-scope="scope">{{ scope.row.startDate | formatDate }}</template>
        </el-table-column>
        <el-table-column label="结束时间" width="140" align="center">
          <template slot-scope="scope">{{ scope.row.endDate | formatDate }}</template>
        </el-table-column>
        <el-table-column label="上线/下线" width="200" align="center">
          <template slot-scope="scope">
            <el-switch
              @change="handleStatusChange(scope.$index, scope.row)"
              :active-value="1"
              :inactive-value="0"
              v-model="scope.row.status">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180" align="center">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="text"
              @click="handleSelectSession(scope.$index, scope.row)">设置商品
            </el-button>
            <el-button
              size="mini"
              type="text"
              @click="handleUpdate(scope.$index, scope.row)">
              编辑
            </el-button>
            <el-button
              size="mini"
              type="text"
              @click="handleDelete(scope.$index, scope.row)">删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="pagination-container">
      <el-pagination
        background
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        layout="total, sizes,prev, pager, next,jumper"
        :current-page.sync="listQuery.pageNum"
        :page-size="listQuery.pageSize"
        :page-sizes="[5,10,15]"
        :total="total">
      </el-pagination>
    </div>
    <el-dialog
      title="添加活动"
      :visible.sync="dialogVisible"
      width="40%">
      <el-form
        :model="flashPromotion"
        ref="flashPromotionForm"
        label-width="150px"
        size="small">
        <el-form-item label="活动标题：">
          <el-input v-model="flashPromotion.title" style="width: 250px"></el-input>
        </el-form-item>
        <el-form-item label="开始时间：">
          <el-date-picker
            v-model="flashPromotion.startDate"
            type="date"
            placeholder="请选择时间">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="结束时间：">
          <el-date-picker
            v-model="flashPromotion.endDate"
            type="date"
            placeholder="请选择时间">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="上线/下线">
          <el-radio-group v-model="flashPromotion.status">
            <el-radio :label="1">上线</el-radio>
            <el-radio :label="0">下线</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small">取 消</el-button>
        <el-button type="primary" @click="handleDialogConfirm()" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
import { fetchList, updateStatus, deleteFlash, createFlash, updateFlash } from '@/api/flash'
import { formatDate } from '@/utils/date'

const defaultListQuery = {
  pageNum: 1,
  pageSize: 5,
  keyword: null
}
const defaultFlashPromotion = {
  id: null,
  title: null,
  startDate: null,
  endDate: null,
  status: 0
}
export default {
  name: 'FlashPromotionList',
  data () {
    return {
      listQuery: Object.assign({}, defaultListQuery),
      list: null,
      total: null,
      listLoading: false,
      dialogVisible: false,
      flashPromotion: Object.assign({}, defaultFlashPromotion),
      isEdit: false
    }
  },
  created () {
    this.getList()
  },
  filters: {
    formatActiveStatus (row) {
      const nowTime = new Date().getTime()
      if (nowTime >= row.startDate && nowTime <= row.endDate) {
        return '活动进行中'
      } else if (nowTime > row.endDate) {
        return '活动已结束'
      } else {
        return '活动未开始'
      }
    },
    formatDate (time) {
      if (time == null || time === '') {
        return 'N/A'
      }
      const date = new Date(time)
      return formatDate(date, 'yyyy-MM-dd')
    }
  },
  methods: {
    handleResetSearch () {
      this.listQuery = Object.assign({}, defaultListQuery)
    },
    handleSearchList () {
      this.listQuery.pageNum = 1
      this.getList()
    },
    handleSizeChange (val) {
      this.listQuery.pageNum = 1
      this.listQuery.pageSize = val
      this.getList()
    },
    handleCurrentChange (val) {
      this.listQuery.pageNum = val
      this.getList()
    },
    handleAdd () {
      this.dialogVisible = true
      this.isEdit = false
      this.flashPromotion = Object.assign({}, defaultFlashPromotion)
    },
    handleShowSessionList () {
      this.$router.push({ path: '/sms/flashSession' })
    },
    handleStatusChange (index, row) {
      this.$confirm('是否要修改该状态?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        updateStatus(row.id, { status: row.status }).then(response => {
          this.$message({
            type: 'success',
            message: '修改成功!'
          })
        })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '取消修改'
        })
        this.getList()
      })
    },
    handleDelete (index, row) {
      this.$confirm('是否要删除该活动?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        deleteFlash(row.id).then(response => {
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
          this.getList()
        })
      })
    },
    handleUpdate (index, row) {
      this.dialogVisible = true
      this.isEdit = true
      this.flashPromotion = Object.assign({}, row)
    },
    handleDialogConfirm () {
      this.$confirm('是否要确认?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        if (this.isEdit) {
          updateFlash(this.flashPromotion.id, this.flashPromotion).then(response => {
            this.$message({
              message: '修改成功！',
              type: 'success'
            })
            this.dialogVisible = false
            this.getList()
          })
        } else {
          createFlash(this.flashPromotion).then(response => {
            this.$message({
              message: '添加成功！',
              type: 'success'
            })
            this.dialogVisible = false
            this.getList()
          })
        }
      })
    },
    handleSelectSession (index, row) {
      this.$router.push({ path: '/sms/selectSession', query: { flashPromotionId: row.id } })
    },
    getList () {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.listLoading = false
        this.list = response.data.list
        this.total = response.data.total
      })
    }
  }
}
</script>
<style></style>
